Psychology Commons^™

Two Systems Of Efference From Visual Cortex To Anterior Middle Suprasylvian Gyrus, John Marshall Orem

Psychology ETDs

Both an early and a late system of efference could be detected in anterior middle suprasylvian gyrus upon stimulation of ipsilateral visual cortex with single pulses in chloralosed cats. The early system was seen as a positive potential peaking within 10 msec after the stimulus, and it was eliminated or reduced by vertically sectioning between visual cortex and anterior middle suprasylvian gyrus. The late system (a positive potential peaking 15 to 30 msec after the stimulus) was eliminated by either an undercutting of visual cortex or aiscrcte lesions in the ipsilateral superior colliculus. The early system was maximally elicited from …

Effects Of Pre-Exposure On Perceptual Curiosity For Stimulus Similarity And Novelty., Mohammed Mujeeb-Ur-Rahman

Psychology ETDs

The present study was concerned with the analysis of the limita­tions of the existing approaches to curiosity behavior, and the proposal of a new formulation. The basic assumption was that novel information in a stimulus arouses a "drive to organize" or process the information, and that such a drive continues to operate until an adequate amount of information has been processed. It was also assumed that the interruption of this drive process leads to a continued state of motivation to resolve the information when it becomes available on a subsequent occasion.

Deductions following from these assumptions were translated into two …